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Authors: Matěj Šmíd and Jiri Matas

Affiliation: Czech Technical University in Prague, Czech Republic

Keyword(s): Synchronization, Rolling Shutter, Multiple Camera, Photographic Flash.

Related Ontology Subjects/Areas/Topics: Applications and Services ; Camera Networks and Vision ; Computer Vision, Visualization and Computer Graphics ; Device Calibration, Characterization and Modeling ; Image Formation and Preprocessing ; Motion, Tracking and Stereo Vision ; Multimodal and Multi-Sensor Models of Image Formation ; Video Surveillance and Event Detection

Abstract: A simple method for synchronization of video streams with a precision better than one millisecond is proposed. The method is applicable to any number of rolling shutter cameras and when a few photographic flashes or other abrupt lighting changes are present in the video. The approach exploits the rolling shutter sensor property that every sensor row starts its exposure with a small delay after the onset of the previous row. The cameras may have different frame rates and resolutions, and need not have overlapping fields of view. The method was validated on five minutes of four streams from an ice hockey match. The found transformation maps events visible in all cameras to a reference time with a standard deviation of the temporal error in the range of 0.3 to 0.5 milliseconds. The quality of the synchronization is demonstrated on temporally and spatially overlapping images of a fast moving puck observed in two cameras.

CC BY-NC-ND 4.0

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Paper citation in several formats:
Šmíd, M. and Matas, J. (2017). Rolling Shutter Camera Synchronization with Sub-millisecond Accuracy. In Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2017) - Volume 4: VISAPP; ISBN 978-989-758-225-7; ISSN 2184-4321, SciTePress, pages 238-245. DOI: 10.5220/0006175402380245

@conference{visapp17,
author={Matěj Šmíd. and Jiri Matas.},
title={Rolling Shutter Camera Synchronization with Sub-millisecond Accuracy},
booktitle={Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2017) - Volume 4: VISAPP},
year={2017},
pages={238-245},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006175402380245},
isbn={978-989-758-225-7},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2017) - Volume 4: VISAPP
TI - Rolling Shutter Camera Synchronization with Sub-millisecond Accuracy
SN - 978-989-758-225-7
IS - 2184-4321
AU - Šmíd, M.
AU - Matas, J.
PY - 2017
SP - 238
EP - 245
DO - 10.5220/0006175402380245
PB - SciTePress